Flange Insert valves are the ultimate check valves in flanged systems. They provide the simplest most economical way to install check valves in a piping system, the valve body automatically positions the valve and holds it in place while bolts are being installed and tightened. All that is required is two gaskets in place of the one normally used in a flanged joint. See additional installation guidelines or consult the factory for more information.
Since our inception in 1958, Check-All Valve has expanded from producing one valve with one material to manufacturing a series of valves in a wide range of materials. Many companies manufacture check valves in addition to other product lines; however, Check-All Valve is dedicated solely to the design and manufacture of spring loaded check valves.